Inventions of the 50s

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Across
  1. 4. What was one of the main themes for what was invented in the 50s?
  2. 5. What was the object that was very useful and used in many things?
  3. 6. What was the thing that made buying things easier?
Down
  1. 1. What helped prevent outbreaks of diseases?
  2. 2. What " room sized box" was invented in the 50s that we modernized and still use today?
  3. 3. What is the term for when everyone wants to have what everyone else has?